/Engine/Source/Runtime/Engine/Public/HLSLTree/HLSLTreeEmit.h
FStringViews passed to this method are expected to reference persistent memory
[FEmitShaderExpression](API\Runtime\Engine\HLSLTree\FEmitShaderExpression) * EmitCustomHLSL ( [FEmitScope](API\Runtime\Engine\HLSLTree\FEmitScope) & Scope, FStringView DeclarationCode, FStringView FunctionCode, TConstArrayView< [FCustomHLSLInput](API\Runtime\Engine\HLSLTree\FCustomHLSLInput) > Inputs, const [Shader::FStructType](API\Runtime\Engine\Shader\FStructType) * OutputType )